Whakaoti mō x
x=31
Graph
Tohaina
Kua tāruatia ki te papatopenga
136-x-x=74
Tangohia te x mai i ngā taha e rua.
136-2x=74
Pahekotia te -x me -x, ka -2x.
-2x=74-136
Tangohia te 136 mai i ngā taha e rua.
-2x=-62
Tangohia te 136 i te 74, ka -62.
x=\frac{-62}{-2}
Whakawehea ngā taha e rua ki te -2.
x=31
Whakawehea te -62 ki te -2, kia riro ko 31.
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